%0 Journal Article
%T Determination of tetraethyllead in water by gas chromatography-mass spectrometry<br>气相色谱-质谱法测定水中痕量的四乙基铅
%A YANG Lili
%A WANG Meifei
%A LI Juan
%A HU Enyu
%A <br>杨丽莉
%A 王美飞
%A 李娟
%A 胡恩宇
%J 色谱
%D 2010
%I 
%X A new method for the determination of tetraethyllead (TEL) in water by gas chromatography-mass spectrometry (GC-MS) has been developed. The TEL in water samples (200 mL) was extracted with hexane (50 mL) by adding 20 g NaCl, then the extracted solution was concentrated into 1.0 mL and the internal standard (naphthalene-d8) solution was added to every concentrated solution. The pretreated samples were analyzed by GC-MS. An amount of 1.0 μL solution was injected onto an HP-5ms capillary column (30 m×0.25 mm×0.25 μm) and determined by GC-MS in selected ion monitoring (SIM). The selected monitoring ions were m/z 136, 236, 237, 294 and 295. The m/z 295 was selected as quantitative ion for TEL and m/z 136 for the internal standard. The method had good linearity over the tested concentration range of 0.02~0.40 mg/L (r=0.9998) for TEL. The analytical performance characteristics of the proposed procedure were as follows: the detection limit for TEL in 200 mL water sample was 0.04 μg/L. The average recoveries and the relative standard deviations of TEL were 92.2%~103% and less than 13.3%, respectively. The method is rapid, convenient and accurate for the determination of water samples.
%K gas chromatography-mass spectrometry (GC-MS)
%K tetraethyllead
%K water<br>气相色谱-质谱法
%K 四乙基铅
%K 水
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=4D81E042D77AFEC6881D14759692069C&aid=65AFE4D8547DB980CBF7D3D5E33BAD48&yid=140ECF96957D60B2&vid=D3E34374A0D77D7F&iid=F3090AE9B60B7ED1&sid=3A834AEE2C42102E&eid=112A5CAF55F27887&journal_id=1000-8713&journal_name=色谱&referenced_num=1&reference_num=0